New SHRIMP U-Pb data from the Famatina Complex: constraining Early–Mid Ordovician Famatinian magmatism in the Sierras Pampeanas, Argentina

A. Dahlquist, Juán; J. Pankhurst, R.; W. Rapela, Carlos; Galindo, Carmen; H. Alasino, Pablo; Mark Fanning, C.; Saavedra, John; G. Baldo, Edgardo

doi:10.1344/105.000000260

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New SHRIMP U-Pb data from the Famatina Complex: constraining Early–Mid Ordovician Famatinian magmatism in the Sierras Pampeanas, Argentina

Published in Geologica Acta • Apr 28, 2009

Authors:

Juán A. Dahlquist

R. J. Pankhurst

Carlos W. Rapela

Abstract

New SHRIMP U-Pb zircon ages are reported for igneous and sedimentary rocks of the Famatina Complex, constraining the age of the magmatism and the ensialic basins. Together with whole-rock and isotope geochemistry for the igneous rocks from the complex, these ages indicate that the voluminous parenta...

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Open Access

Subject

Ordovician

Geology

Magmatism

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